body {
    background-color: black;
    color: white;
    font-family: Arial, sans-serif;
}

.container {
    width: 80%;
    margin: 0 auto;
}

header {
    text-align: center;
    padding: 20px 0;
}

nav ul {
    list-style-type: none;
    padding: 0;
}

nav ul li {
    display: inline;
    margin-right: 20px;
}

nav ul li a {
    text-decoration: none;
    color: white;
}

.main-content {
    text-align: center;
    padding: 20px;
}